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Synthesis, Characterization, and Photoisomerization Studies of Azo- and Stilbene-Containing Surfactant Rhenium(I) Complexes

Vivian Wing‐Wah Yam, Yu Lin Yang, Jiaxin Zhang, Ben Wai‐Kin Chu, Nianyong Zhu

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Abstract

A series of rhenium(I) surfactant complexes, fac -[Re(CO) 3 (N−N)(L)]PF 6 (N−N = diimine, L = pyridyl ligand), with various azo- and stilbene-containing ligands have been synthesized and their photophysical properties studied. The X-ray crystal structure of the complex fac -[Re(CO) 3 (bpy)(L)]PF 6 (bpy = 2,2‘-bipyridine, L = 4-(4‘-octadecyloxyphenylstyryl)pyridine) has been determined. The photoinduced isomerization processes of these complexes and their free ligands have been studied by electronic absorption and 1 H NMR spectroscopy, and their quantum yields determined.

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What this paper is about

A series of rhenium(I) surfactant complexes, fac -[Re(CO) 3 (N−N)(L)]PF 6 (N−N = diimine, L = pyridyl ligand), with various azo- and stilbene-containing ligands have been synthesized and their photophysical properties studied. The X-ray crystal structure of the complex fac -[Re(CO) 3 (bpy)(L)]PF 6 (bpy = 2,2‘-bipyridine, L = 4-(4‘-octadecyloxyphenylstyryl)pyridine) has been determined. The photoinduced isomerization processes of these complexes and their free ligands have been studied by electronic absorption and 1 H NMR spectroscopy, and their quantum yields determined.

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Available abstract

A series of rhenium(I) surfactant complexes, fac -[Re(CO) 3 (N−N)(L)]PF 6 (N−N = diimine, L = pyridyl ligand), with various azo- and stilbene-containing ligands have been synthesized and their photophysical properties studied. The X-ray crystal structure of the complex fac -[Re(CO) 3 (bpy)(L)]PF 6 (bpy = 2,2‘-bipyridine, L = 4-(4‘-octadecyloxyphenylstyryl)pyridine) has been determined. The photoinduced isomerization processes of these complexes and their free ligands have been studied by electronic absorption and 1 H NMR spectroscopy, and their quantum yields determined.

Key concepts: Chemistry, Photoisomerization, Rhenium, Diimine, Isomerization, Photochemistry, Pyridine, Ligand (biochemistry)

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Synthesis, Characterization, and Photoisomerization Studies of Azo- and Stilbene-Containing Surfactant Rhenium(I) Complexes — Research Paper | ScholarLens